Bubble from return pump

[Bliz]

I am getting bubbles in my tank from my return pump. I have plenty of water so I'm not sure how this is happening ... Any ideas?? I have a 75g with trickle filter.

 

[mfdrookie516]

are there bubbles in the return chamber? Is there a bubble trap before the return chamber?

 

[Bliz]

I don't have any experience with a bubble trap how do they work. These are very tiny air bubbles

 

[mfdrookie516]

The bubble trap just catches bubbles, since they float. It has two-three baffles, one being on the bottom to keep the level of water right, then one on each side (or just on the down side of the other) that's raised up an inch or so to catch them. Putting a sponge pre-filter on the pump may help with the bubbles too.